The impact of heat waves on mortality in Northwest India
| Autor: | Prakash C. Gupta, Gulrez ShahAzhar, Michelle L. Bell, Mangesh S. Pednekar, Ji-Young Son, Ajit Rajiva, Amruta Nori-Sarma, Roger D. Peng, G. Brooke Anderson |
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| Rok vydání: | 2019 |
| Předmět: |
Percentile
Hot Temperature Climate Change Population Climate change India 010501 environmental sciences 01 natural sciences Biochemistry 03 medical and health sciences 0302 clinical medicine Temperate climate Humans 030212 general & internal medicine Mortality education 0105 earth and related environmental sciences General Environmental Science education.field_of_study Temperature Environmental Exposure Heat wave Confidence interval Geography Seasons Effect modification Intensity (heat transfer) Demography |
| Zdroj: | Environmental research. 176 |
| ISSN: | 1096-0953 |
| Popis: | Heat waves are anticipated to worsen with climate change. India, an understudied area with >15% of the world’s population, commonly experiences temperature extremes and already resembles potential future climates of more temperate regions. Registry data from local municipal corporations and government offices were collected and translated, yielding daily all-cause mortality for 4 communities in Northwest India for all or part of the period 2000–2012. Heat waves were defined as ≥2 days with local temperature ≥97th percentile for that community. An alternate definition matching that used by the Indian Meteorological Department was also developed, to enhance policy relevance. Community-specific average daily maximum temperature over the entire record ranged from 32.5 to 34.2 °C (90.5–93.6 °F). Across communities, total mortality increased 18.1% during heat wave days compared with non-heat-wave days [95% confidence interval (CI): −5.3%, 47.3%], with the highest risk in Jaipur (29.9% [95% CI: 24.6%, 34.9%]). Evidence of effect modification by heat wave characteristics (intensity, duration, and timing in season) was limited. Findings indicate health risks associated with heat waves in communities with high baseline temperatures. Results can inform heat wave-health assessments in temperate regions in future, and improve our understanding of temperature-health associations under climate change. Further investigation of potential effect modification by heat wave characteristics is needed. |
| Databáze: | OpenAIRE |
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